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- Radzinsky and Kelvin suspected that they were being lied to so started to gather their own information, recording it in a place that only they knew about. The information on the blast door map would be a secret to anyone who didn't know how to view it. Although they were the only inhabitants of the Swan, they knew that they were being watched by CCTV. The messages are communications to the outside world or between bunkers. Radzinsky and Kelvin intercepted the coded messages (possibly via the Swan computer). Not knowing what the codes meant, Radzinsky and Kelvin simply recorded them on the blast door map, along with all the other information they gathered from their patrols of the island, in the hope of translating them later. Some of the messages are mundane but others show that someone realized that there was no sickness and that the quarantine was a hoax. Upon finding out that it was all a hoax, Radzinsky killed himself. Kelvin had no choice but to remain in the bunker because he knew he was being watched. Desmond's arrival provided the perfect opportunity for Kelvin to finally leave. He hoped that whoever was watching him would assume that Desmond was the replacement that was expected. Kelvin then employed DHARMA tactics to ensure Desmond would stay in the hatch.
- The message "What good is peanut butter and cereal without milk" is foreshadowing to the cows which were found at The Flame. This suggests that either Radzinsky or Kelvin were either clueless about the cows, or were trying to send a message to anyone who should try to translate the Blast Door Map.